JP6619899B1

JP6619899B1 - Twisted conductive wire

Info

Publication number: JP6619899B1
Application number: JP2019073400A
Authority: JP
Inventors: 信吾奥田
Original assignee: 株式会社ジーエスエレテック
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2019-12-11
Anticipated expiration: 2039-04-08
Also published as: JP2020173898A

Abstract

【課題】偏心コイル巻き導線１２における単位コイル線部７およびオフセットコイル線部８から構成した撚回型電導線１Ａを提供する。【解決手段】単位コイル線部７の第１中心部７ａとオフセットコイル線部８の第２中心部８とは、互いに反対方向に変位した状態に配置している。このため、単位コイル線部７とオフセットコイル線部８とが同芯で密接状態に配置されたものと異なり、偏心コイル巻き導線１２の良好な放熱性を確保するとともに、電磁気誘導作用の影響を低減して電力損失を抑制し、併せて偏心コイル巻き導線１２の優れた可撓性および屈曲性を実現する。【選択図】図３Kind Code: A1 Abstract: A twisted conductive wire 1A comprising an unit coil wire portion 7 and an offset coil wire portion 8 in an eccentric coil winding wire 12 is provided. A first central portion of a unit coil wire portion and a second central portion of an offset coil wire portion are arranged so as to be displaced in directions opposite to each other. Therefore, unlike the unit coil wire portion 7 and the offset coil wire portion 8 which are arranged concentrically and in close contact with each other, good heat radiation of the eccentric coil winding wire 12 is ensured, and the influence of the electromagnetic induction action is reduced. The eccentric coil winding conductor 12 achieves excellent flexibility and bendability by reducing the power loss. [Selection diagram] FIG.

Description

本発明は電気系統に配索される電線の改良に係り、とりわけ、高電気容量を必要とする撚回型電導線に関する。 The present invention relates to an improvement of electric wires routed in an electric system, and more particularly to a twisted conductive wire that requires a high electric capacity.

自動車業界では、電装品への電力供給のため、種々の電線が接続用のワイヤーハーネスとして使用されている。この種の適用例としては、ＡＢＳ（アンチロック・ブレーキング・システム）、ＥＰＢ（エレクトリック・パーキングブレーキ）、ＡＶＳ（アダプティブ・バリアブル・サスペンションシステム）やＷＳＳ（ホイール・スキッドシステム）等に対するセンサーへの接続がある。 In the automobile industry, various electric wires are used as wire harnesses for connection in order to supply electric power to electrical components. Examples of this type of application include connection to sensors for ABS (anti-lock braking system), EPB (electric parking brake), AVS (adaptive variable suspension system), WSS (wheel skid system), etc. There is.

将来的な適用としては、ＥＭＢ（エレクトリック・モータブレーキ）に対するセンサーへの接続がある。また、他の適用例としては、コンピュータを内蔵した電子制御ユニット（ＥＣＵ）と各種の車載センサーとの接続に用いられている。 Future applications include connection to sensors for EMB (electric motor brakes). As another application example, it is used for connection between an electronic control unit (ECU) incorporating a computer and various in-vehicle sensors.

自動車うちでもＥＶ車やＰＨＥＶ車などの蓄電池を電源とする車両では、回転速度の変速調整を図るため、インホイールモータなどの駆動モータに高電気容量で給電する必要がある（特許文献１参照）。このため、駆動モータへの電力線を多芯積層電線とし、真円形状に近くて崩れ難く、かつ変形し難い稠密充填として構成する必要がある（特許文献２〜５参照）。 Among vehicles, EVs, PHEV vehicles, and other vehicles that use a storage battery as a power source need to supply power to a drive motor such as an in-wheel motor with a high electric capacity in order to adjust the rotational speed (see Patent Document 1). . For this reason, the power line to the drive motor is a multi-core laminated electric wire, and it is necessary to configure it as close-packed packing that is close to a perfect circle shape and hardly deforms (see Patent Documents 2 to 5).

ちなみに、特許文献２の撚線導体では、複数層から成る外層を有し、外層の各層は複数本の素線を同一周円上に配設されている。外層において、各層を構成する素線の数は全て同一で、各層の素線の直径も同一寸法に設定している。この構造により、素線の接触面での滑り現象が起き難く、撚り戻りが生じ難く、撚り目の開きも起き難くしている。 Incidentally, the stranded wire conductor of Patent Document 2 has an outer layer composed of a plurality of layers, and each layer of the outer layer has a plurality of strands arranged on the same circumference. In the outer layer, the number of wires constituting each layer is the same, and the diameters of the wires in each layer are also set to the same size. With this structure, the slip phenomenon on the contact surface of the strands hardly occurs, the twisting does not easily occur, and the opening of the twists hardly occurs.

電気機器や電気設備系統への適用時、電力線を集合線として利用した場合、表皮ないし近接効果に起因する渦電流の発生を抑制して、電力伝送効率が低下しないようにする必要がある（特許文献６参照）。 When applied to electrical equipment and electrical equipment systems, when power lines are used as a collection line, it is necessary to suppress the generation of eddy currents due to skin or proximity effects so that power transmission efficiency does not decrease (patents) Reference 6).

特開２０１５−１３１６２９号公報JP2015-131629A 特開２００９−１５８３３１号公報JP 2009-158331 A 特開２０１７−１８３０８６号公報JP 2017-1830886 A 特開２００８−２１６０３号公報JP 2008-21603 A 特開２００１−３５２６０号公報JP 2001-35260 A 特開２０１３−２０７９０７号公報JP 2013-207907 A

しかしながら、近時の自動車業界では車両の軽量化に重点をおく傾向が主流となっている。この観点から電線に対する軽量化も要請されており、特許文献１〜６のように配索電線を用いたものでは、高屈曲性能の確保を目指すものの、高電気容量化を確保した軽量化という観点からは不十分である。
また、特許文献６に記載された密巻きコイル導線では、コイル導線に生じるジュール熱によりコイル導線内に熱が籠もり易く、長期使用に伴ってコイル導線が過剰な昇温状態となる虞がある。 However, in the recent automobile industry, a tendency to focus on weight reduction of vehicles has become mainstream. From this point of view, a reduction in the weight of the electric wire is also demanded. In the case of using the wiring wires as in Patent Documents 1 to 6, the aim is to secure a high bending performance, but the viewpoint of the weight reduction ensuring a high electric capacity. Is not enough.
Further, in the closely wound coil conductor described in Patent Document 6, heat is easily trapped in the coil conductor due to Joule heat generated in the coil conductor, and the coil conductor may be in an excessively high temperature state with long-term use. .

本発明は上記事情に鑑みてなされたもので、その目的は、軽量化を図りつつ高電気容量化の給電を可能とした上で、可撓性および屈曲性をともに向上させ、併せて過剰な昇温状態となることのない撚回型電導線を提供することにある。 The present invention has been made in view of the above circumstances, and the object thereof is to improve the flexibility and bendability of the power supply while making it possible to supply power with a high electric capacity while achieving weight reduction. An object of the present invention is to provide a twisted conductive wire that does not reach a temperature rise state.

本発明に係る撚回型電導線では、単一ピッチの単位コイル線部は、第１中心部を有し、第１中心部から所定方向回りの外方に螺旋状を成すようにループ状に曲成し、その終端部をループ端部とする。配列コイル線部は、単位コイル線部の多数を一定で限られた微小な間隔で、一定の直線に沿った長手方向に並べて配置（並列配置）することにより構成されている。 In the twisted conductive wire according to the present invention, the unit coil wire portion having a single pitch has a first central portion, and is formed in a loop shape so as to form a spiral outward from the first central portion around a predetermined direction. It bends and its end is the loop end. The array coil wire portion is configured by arranging a large number of unit coil wire portions in a longitudinal direction along a certain straight line at a small and constant interval (parallel arrangement).

長手方向に伸縮自在な偏心コイル巻き導線は、隣り合う単位コイル線部のうち一方のループ端部と他方の第１中心部とを一体的に連結する単一のオフセットコイル線部を有する。このオフセットコイル線部は、長手方向に垂直な方向に沿って変位した状態に配置され、かつ単位コイル線部の螺旋巻き方向と同一方向に巻回された螺旋状を成して第２中心部を有している。 The eccentric coil winding wire that is extendable in the longitudinal direction has a single offset coil wire portion that integrally connects one loop end portion and the other first central portion of adjacent unit coil wire portions. The offset coil wire portion is arranged in a state displaced along a direction perpendicular to the longitudinal direction , and forms a spiral shape wound in the same direction as the spiral winding direction of the unit coil wire portion. have.

偏心コイル巻き導線は、撚線を複数層に積層された複数の多芯積層部を有し、複数の多芯積層部うち中心部の多芯積層部の外周縁に外接触状態に設けた外側の多芯積層部を複数本撚回して配置して成る。多芯積層部の各層は同芯的に配置されており、各層の撚線の線径寸法が多芯積層部の内層から外層にゆくに従って漸増するように設定されている。 The eccentric coil winding wire has a plurality of multi-core laminated portions in which twisted wires are laminated in a plurality of layers, and is provided on the outer peripheral edge of the multi-core laminated portion at the center of the plurality of multi-core laminated portions in an outer contact state. A plurality of multi-core laminated parts are twisted and arranged. Each layer of the multi-core laminate is arranged concentrically, and the diameter of the stranded wire of each layer is set so as to gradually increase from the inner layer to the outer layer of the multi-core laminate.

上記構成では、単位コイル線部の第１中心部とオフセットコイル線部の第２中心部とは、長手方向に垂直な方向に変位した状態に配置されている。
これにより、単位コイル線部とオフセットコイル線部とのうち、電流の流れが互いに逆方向となる線部分（線領域）が少なくなる上に、これら線部分が長手方向に対して上下に大きく離間する。このため、上述の線部分に逆方向に生じる電磁誘導作用の影響を少なくして電力損失の低下を抑制することができる。 In the above configuration, the first center portion of the unit coil wire portion and the second center portion of the offset coil wire portion are arranged in a state of being displaced in a direction perpendicular to the longitudinal direction .
As a result, the unit coil wire portion and the offset coil wire portion have fewer wire portions (line regions) in which the current flows in opposite directions, and these wire portions are greatly separated from each other in the longitudinal direction. To do. For this reason, the influence of the electromagnetic induction effect produced in the reverse direction on the above-described line portion can be reduced, and the reduction in power loss can be suppressed.

単位コイル線部とオフセットコイル線部とを長手方向に垂直な方向に変位して配置したことに伴い、単位コイル線部の頂部とオフセットコイル線部の頂部とが互いに逆方向に突出して外部に晒される状態となる。
この結果、偏心コイル巻き導線に発生するジュール熱は、上述の頂部を介して外部に効果的に放出される。すなわち、これら頂部が放熱フィンとしても働き、長期使用に伴なっても、偏心コイル巻き導線内に熱が籠もらず、偏心コイル巻き導線が過剰な昇温状態になることがない。 There accompanied the unit coil wire portion and an offset coil wire unit that is arranged displaced in a direction perpendicular to the longitudinal direction, the outside and the top of the top of the unit coil wire portion and an offset coil wire portions projecting in opposite directions It will be in a state exposed to.
As a result, Joule heat generated in the eccentric coil winding is effectively released to the outside through the top portion. That is, these top portions also function as heat radiating fins, and even when used for a long period of time, heat is not trapped in the eccentric coil winding wire, so that the eccentric coil winding wire is not excessively heated.

また、偏心コイル巻き導線は、撚線が複数層に積層された多芯積層部から成り、多芯積層部の各層は撚線を構成し、各層の撚線の線径寸法は内層から外層にゆくに従って漸増するように設定している。これにより、軽量化を図りながらも稠密充填が実現し、多芯積層部の高電気容量化を確保することができる。 Further, the eccentric coil winding wire is composed of a multi-core laminated portion in which stranded wires are laminated in a plurality of layers, each layer of the multi-core laminated portion constitutes a stranded wire, and the wire diameter dimension of each layer is changed from the inner layer to the outer layer. It is set to increase gradually as time goes on. Thereby, dense filling is realized while achieving weight reduction, and a high electric capacity of the multi-core laminated portion can be ensured.

また、中央部の多芯積層部の外周縁に外接触状態に設けた外側の多芯積層部を複数本撚回して配置している。撚回配置した外側の多芯積層部により、外側の多芯積層部が線長方向に滑り易くなるため、偏心コイル巻き導線が曲げ変形力等に対してしなやかとなり、可撓性および屈曲性等の物理特性が向上する。 Further, a plurality of outer multi-core laminated portions provided in an outer contact state are twisted and arranged on the outer peripheral edge of the central multi-core laminated portion. The outer multi-core laminated portion arranged in a twisted manner makes it easier for the outer multi-core laminated portion to slip in the wire length direction, so that the eccentric coil winding wire is flexible with respect to bending deformation force, etc., and is flexible and flexible. Improved physical properties.

電気系統に用いられる撚回型電導線をインホイールモータに適用した構造を示す縦断面図である（実施例１）。(Example 1) which is a longitudinal cross-sectional view which shows the structure which applied the twist type | mold conductive wire used for an electrical system to an in-wheel motor. （ａ）は偏心コイル巻き導線を示す斜視図（実施例１）、（ｂ）は図２（ａ）の矢印Ｅｙから見た矢視図（実施例１）、（ｃ）は図２（ａ）の矢印Ｅｘから見た矢視図（実施例１）、（ｄ）は偏心コイル巻き導線を示す正面図である（実施例１の変形例）。(A) is a perspective view showing an eccentric coil winding wire (Example 1), (b) is an arrow view (Example 1) seen from an arrow Ey in FIG. 2 (a), and (c) is FIG. 2 (a). (B) is a front view showing an eccentric coil winding (a modified example of the first embodiment). （ａ）は偏心コイル巻き導線の多芯積層線を示す分解横断面図、（ｂ）は偏心コイル巻き導線の多芯積層線を示すもので、図２（ａ）のＸｋ−Ｘｋ線に沿う拡大横断面図である（実施例１）。(A) is an exploded cross-sectional view showing a multi-core laminated wire of an eccentric coil winding wire, (b) shows a multi-core laminated wire of an eccentric coil winding wire, and is along the Xk-Xk line of FIG. (Example 1) which is an expanded horizontal sectional view. 偏心コイル巻き導線の多芯積層部を一部破断して示す斜視図である（実施例２）。(Example 2) which is a partially broken and shows the multi-core lamination | stacking part of an eccentric coil winding wire. （ａ）は多芯積層線を示す横断面図、（ｂ）は偏心コイル巻き導線の多芯積層部を示す横断面図である（実施例３）。(A) is a cross-sectional view which shows a multi-core laminated wire, (b) is a cross-sectional view which shows the multi-core laminated part of an eccentric coil winding conducting wire (Example 3). （ａ）は多芯積層線を示す横断面図、（ｂ）は偏心コイル巻き導線の多芯積層部を示す横断面図である（実施例４）。(A) is a cross-sectional view which shows a multi-core laminated wire, (b) is a cross-sectional view which shows the multi-core laminated part of an eccentric coil winding conductor (Example 4). 偏心コイル巻き導線の外被層に電磁波シールド層を設けた状態を示す斜視図である（実施例５）。(Example 5) which is a perspective view which shows the state which provided the electromagnetic wave shield layer in the jacket layer of the eccentric coil winding wire. 偏心コイル巻き導線と外被層との間に電磁波シールド層を設けた状態を示す斜視図である（実施例６）。(Example 6) which is a perspective view which shows the state which provided the electromagnetic wave shield layer between the eccentric coil winding wire and the jacket layer. 偏心コイル巻き導線と外被層との間および外被層に電磁波シールド層を設けた状態を示す斜視図である（実施例７）。(Example 7) which is a perspective view which shows the state which provided the electromagnetic wave shield layer between the eccentric coil winding and the jacket layer, and the jacket layer.

本発明では、単位コイル線部の第１中心部とオフセットコイル線部の第２中心部とは、長手方向に垂直な方向に変位した状態に配置し、電力損失の低下を抑制するとともに、ジュール熱を効果的に放出する。また、中心部の多芯積層部の外周縁に外接触状態に設けた外側の多芯積層部を複数本撚回して配置している。撚回配置した外側の多芯積層部により、外側の多芯積層部が線長方向に滑り易くなる技術的特徴を有するため、偏心コイル巻き導線が曲げ変形力等に対してしなやかとなり、可撓性および屈曲性等が向上する。 In the present invention, the first center portion of the unit coil wire portion and the second center portion of the offset coil wire portion are arranged in a state of being displaced in a direction perpendicular to the longitudinal direction to suppress a reduction in power loss and Dissipates heat effectively. Further, a plurality of outer multi-core laminated portions provided in an outer contact state are twisted and arranged on the outer peripheral edge of the central multi-core laminated portion. The outer multi-core laminated portion arranged in a twisted manner has a technical feature that makes the outer multi-core laminated portion easily slip in the wire length direction, so that the eccentric coil winding wire is flexible with respect to bending deformation force, etc. And flexibility are improved.

図１ないし図３に基づいて本発明の実施例１を説明する。
本発明に係る撚回型電導線では、例えば、自動車に装備されたＡＢＳ（アンチロック・ブレーキングシステム）やＥＰＢ（エレクトリック・パーキングブレーキ）などの電装品の駆動用のセンサー（図示せず）から制御コンピュータとしての電子制御ユニットへの信号伝送にも有用である。なかでも、ＥＶ車やＰＨＥＶ車などの電気自動車のインホイールモータへの電力線として好適となる。
電源としては、例えば、薄型矩形状の電池を単体の二次電池として左右方向に沿って複数個並列させて重ね合せた電池集合体（セル一列積層体）を後述する蓄電池８として用いている。 A first embodiment of the present invention will be described with reference to FIGS.
In the twisted conductive wire according to the present invention, for example, from a sensor (not shown) for driving electrical components such as ABS (anti-lock braking system) and EPB (electric parking brake) equipped in an automobile. It is also useful for signal transmission to an electronic control unit as a control computer. Especially, it becomes suitable as an electric power line to the in-wheel motor of electric vehicles, such as EV car and PHEV car.
As the power source, for example, a battery assembly (cell single-layer stack) in which a plurality of thin rectangular batteries are stacked in parallel in the left-right direction as a single secondary battery is used as the storage battery 8 described later.

撚回型電導線１Ａは、例えば図１に示すように、電気自動車におけるタイヤ１のホイール２の直流（ＤＣ）あるいは交流（ＡＣ）のインホイールモータ３に適用されている。ホイール２の内方には、サスペンション機構３Ａが配置され、ダンパーから成るショックアブゾーバ４を囲繞するように圧縮コイルスプリング５が配置されている。
インホイールモータ３の入力端子Ｔ１、Ｔ２、Ｔ３、Ｔ４には、給電線Ｌｕ、Ｌｖ、Ｌｗ、Ｌｓがそれぞれ電力線６として接続されている。電力線６は、インバータ７の出力端子ｕ１、ｕ２、ｕ３、ｕ４を順に入力端子Ｔ１、Ｔ２、Ｔ３、Ｔ４に接続している。 For example, as shown in FIG. 1, the twisted conductive wire 1 </ b> A is applied to a direct current (DC) or alternating current (AC) in-wheel motor 3 of a wheel 2 of a tire 1 in an electric vehicle. A suspension mechanism 3A is disposed inside the wheel 2, and a compression coil spring 5 is disposed so as to surround a shock absorber 4 made of a damper.
Feed lines Lu, Lv, Lw, and Ls are connected as power lines 6 to input terminals T1, T2, T3, and T4 of the in-wheel motor 3, respectively. The power line 6 connects the output terminals u1, u2, u3, u4 of the inverter 7 to the input terminals T1, T2, T3, T4 in order.

バッテリーとしての蓄電池２８は、システム・メインリレー９（ＳＭＲ）および電力コントロールユニット１０（ＰＣＵ）を介してインバータ２７に接続されている。電子制御ユニット１１は、システム・メインリレー９および電力コントロールユニット１０にそれぞれ接続されている。 A storage battery 28 as a battery is connected to an inverter 27 via a system main relay 9 (SMR) and a power control unit 10 (PCU). The electronic control unit 11 is connected to the system main relay 9 and the power control unit 10 respectively.

給電線Ｌｕ、Ｌｖ、Ｌｗ、Ｌｓとしての電力線６は、図２（ａ）〜（ｃ）に示すように、巻き線形状の偏心コイル巻き導線１２を一定の直線に沿った長手方向Ｌに沿って伸縮自在に構成するものである。
偏心コイル巻き導線１２において、単一ピッチの単位コイル線部７は、第１中心部７ａを有し、第１中心部７ａから単位コイル線部７の径方向に延びてから所定方向回りの螺旋巻き方向Ｊ（例えば反時計方向回り）に螺旋状を成すようにループ状に曲成巻回され、その終端部をループ端部７ｓとしている。 As shown in FIGS. 2 (a) to 2 (c), the power line 6 serving as the feeder lines Lu, Lv, Lw, and Ls is formed by winding the eccentric coil winding wire 12 in the longitudinal direction L along a certain straight line. It is configured to be stretchable.
In the eccentric coil winding 12, the unit coil wire portion 7 having a single pitch has a first center portion 7 a and extends in the radial direction of the unit coil wire portion 7 from the first center portion 7 a and then spirals around a predetermined direction. It is wound in a loop shape so as to form a spiral shape in the winding direction J (for example, counterclockwise), and its end portion is a loop end portion 7s.

また、単位コイル線部７の多数を互いに近接させた、一定で限られた接近間隔Ｍ（例えば、１ｍｍ〜３ｍｍ程度）で、長手方向Ｌ（例えば、図示左右方向）に沿って並べて配置されている。この配列（並列配置）により、配列コイル線部７Ａが構成されている。配列された単位コイル線部７の隣接する第１中心部７ａどおしは、長手方向Ｌに沿って同軸となるように設定されている。
なお、微小間隔Ｍとしては、後述するオフセットコイル線部８が有する線径寸法Ｒｚの大きさの１倍〜１．５倍の範囲内の間隙であってもよい（図２（ａ）、（ｂ）では、接近間隔Ｍと線径寸法Ｒｚとの寸法関係を便宜上の観点から誇張して示している）。 In addition, the unit coil wire portions 7 are arranged side by side along the longitudinal direction L (for example, the left-right direction in the drawing) at a constant and limited approach interval M (for example, about 1 mm to 3 mm) in which a large number of unit coil wire portions 7 are close to each other. Yes. The array coil wire portion 7A is configured by this array (parallel arrangement). The adjacent first central portions 7a of the unit coil wire portions 7 arranged are set to be coaxial along the longitudinal direction L.
The minute interval M may be a gap in the range of 1 to 1.5 times the wire diameter Rz of the offset coil wire portion 8 to be described later (FIG. 2 (a), ( In b), the dimensional relationship between the approach interval M and the wire diameter Rz is exaggerated from the viewpoint of convenience).

単一のオフセットコイル線部８は、単位コイル線部７の螺旋巻き方向Ｊと同方向の螺旋状に巻回された単一ピッチのループ状に曲成されている。このオフセットコイル線部８は、互いに近接する始端部８ｇおよび終端部８ｈを有しており、隣り合う単位コイル線部７、７の間に近接状態に配置されている。 The single offset coil wire portion 8 is bent into a single pitch loop wound in a spiral shape in the same direction as the spiral winding direction J of the unit coil wire portion 7. The offset coil wire portion 8 has a start end portion 8g and a terminal end portion 8h that are close to each other, and is disposed in a close proximity between adjacent unit coil wire portions 7 and 7.

オフセットコイル線部８は、短尺の接続左線８ｅを介して始端部８ｇを図示左側の単位コイル線部７のループ端部７ｓに一体的に連結している。終端部８ｈは、短尺の接続右線８ｆを介して図示右側の単位コイル線部７の第１中心部７ａに一体的に連結されている。これにより、オフセットコイル線部８は、これに隣り合う単位コイル線部７の第１中心部７ａ、７ａどおしの間に近接配置される。 The offset coil wire portion 8 integrally connects the start end portion 8g to the loop end portion 7s of the unit coil wire portion 7 on the left side of the drawing via a short connection left line 8e. The terminal portion 8h is integrally connected to the first central portion 7a of the unit coil wire portion 7 on the right side of the drawing via a short connection right line 8f. As a result, the offset coil wire portion 8 is disposed in proximity between the first central portions 7a, 7a of the unit coil wire portions 7 adjacent to the offset coil wire portion 8.

オフセットコイル線部８は、オフセットコイル線部８の径方向Ｒに沿って第１中心部７ａとは、長手方向に垂直な方向（図示下方）にオフセット状態に変位された第２中心部８ａを有する。単位コイル線部７に隣接配置されたオフセットコイル線部８の第２中心部８ａどうしは、長手方向Ｌに沿って同軸に設定されている。 The offset coil wire portion 8 includes a second center portion 8a that is displaced in an offset state in a direction perpendicular to the longitudinal direction (downward in the drawing) along the radial direction R of the offset coil wire portion 8. Have. The second central portions 8 a of the offset coil wire portions 8 disposed adjacent to the unit coil wire portions 7 are set coaxially along the longitudinal direction L.

この場合、例えば、単位コイル線部７とオフセットコイル線部８とは、実質的に同径寸法であり、第２中心部８ａは、第１中心部７ａから単位コイル線部７ないしオフセットコイル線部８の半径寸法分Ｒｘだけ図示下方にオフセット状態となるように変位させている。このため、オフセットコイル線部の径方向Ｒは、単位コイル線部７の径方向の向きに沿うように設定されている。 In this case, for example, the unit coil wire portion 7 and the offset coil wire portion 8 have substantially the same diameter, and the second center portion 8a extends from the first center portion 7a to the unit coil wire portion 7 or the offset coil wire. The portion 8 is displaced by an amount corresponding to the radial dimension Rx so as to be in an offset state downward in the figure. For this reason, the radial direction R of the offset coil wire portion is set along the radial direction of the unit coil wire portion 7.

なお、半径寸法分Ｒｘの変位量は一例であり、当該半径寸法分Ｒｘの大きさに限らず、仕様状態や設置状態などに応じて種々変更でき、半径寸法分Ｒｘ以下でも以上に設定してもよい。
また、実施例１の変形例として、接続左線８ｅおよび接続右線８ｆをともに省略し、始端部８ｇをループ端部７ｓに直結し、終端部８ｈを第１中心部７ａに直結してもよい（図２（ｄ）参照）。
この場合には、単位コイル線部７とオフセットコイル線部８とが半分同士で左右交互に隣接して密着可能な状態に配置される。すなわち、隣り合う単位コイル線部７、７のうち一方のループ端部７ｓと他方の第１中心部７ａとが連結される。本発明では、接続左線８ｅおよび接続右線８ｆの双方が併存する構成、並びに接続左線８ｅおよび接続右線８ｆが双方とも省略された構成の両方を含む。 The amount of displacement of the radial dimension Rx is an example, and is not limited to the size of the radial dimension Rx, and can be variously changed according to the specification state and installation state. Also good.
As a modification of the first embodiment, the connection left line 8e and the connection right line 8f are both omitted, the start end 8g is directly connected to the loop end 7s, and the end 8h is directly connected to the first center 7a. Good (see FIG. 2D).
In this case, the unit coil wire portion 7 and the offset coil wire portion 8 are arranged in a state in which the unit coil wire portion 7 and the offset coil wire portion 8 can be in close contact with each other. That is, one loop end 7s and the other first central portion 7a of the adjacent unit coil wire portions 7 and 7 are connected. The present invention includes both a configuration in which both the connection left line 8e and the connection right line 8f coexist, and a configuration in which both the connection left line 8e and the connection right line 8f are omitted.

さて、偏心コイル巻き導線１２は、図３（ａ）、（ｂ）に示すように、撚線１６、１７、１８を複数層に積層された複数の多芯積層部１５を撚回して構成されている。
すなわち、偏心コイル巻き導線１２においては、複数の多芯積層部１５うち中心部に多芯積層部１５が存するように配置し、中心部の多芯積層部１５の外周縁に外接触状態に設けた外側の多芯積層部１５を複数本撚回して配置している（実施例１では、６本撚回配置）。外側の多芯積層部１５どおしは、周方向Ｃｓに沿って相互に外接する状態に隣接配置されている。 Now, as shown in FIGS. 3A and 3B, the eccentric coil winding wire 12 is formed by twisting a plurality of multi-core laminated portions 15 in which a plurality of stranded wires 16, 17, and 18 are laminated. ing.
That is, in the eccentric coil winding wire 12, the multi-core laminated portion 15 is arranged so that the multi-core laminated portion 15 exists in the central portion of the plurality of multi-core laminated portions 15, and is provided in an outer contact state on the outer peripheral edge of the central multi-core laminated portion 15. A plurality of outer multi-core laminated portions 15 are twisted and arranged (in Example 1, six twisted arrangement). The outer multi-core laminated portions 15 are adjacently arranged so as to circumscribe each other along the circumferential direction Cs.

斯かる構成を詳述すれば、多芯積層部１５の外周表面は、薄肉の被覆層１３で被覆されているため、中心部の多芯積層部１５および外側の多芯積層部１５の相互間は、被覆層１３を介して外接状態に配置されている。多芯積層部については、便宜上、中心部と外側とを区別せず同一の符号１５を用いて説明する。 In detail, since the outer peripheral surface of the multi-core laminated portion 15 is covered with the thin coating layer 13, the multi-core laminated portion 15 at the center and the outer multi-core laminated portion 15 are arranged between each other. Are arranged in a circumscribed state via the coating layer 13. For the sake of convenience, the multicore laminated portion will be described using the same reference numeral 15 without distinguishing between the central portion and the outside.

被覆層１３の樹脂材料は、弾性に富むポリエチレン、ポリスチレン、ポリプロピレンおよびポリ塩化ビニールから成るビニール系ポリマー群、ならびにポリエステルおよびポリアミドから成る縮合系ポリマー群のうち選択された一つとしている。
また、外側の多芯積層部１５の各々全てには、可撓性に富む樹脂製の外被層１３Ｆｘが外側の多芯積層部１５の各外周表面の外縁側部を束ねて被覆している。すなわち、外被層１３Ｆｘが偏心コイル巻き導線１２の外周表面に密着状態に被覆されている。 The resin material of the coating layer 13 is selected from the group consisting of a vinyl polymer group consisting of polyethylene, polystyrene, polypropylene and polyvinyl chloride rich in elasticity, and a condensation polymer group consisting of polyester and polyamide.
Further, each of the outer multi-core laminated portions 15 is covered with a flexible resin outer layer 13Fx by bundling the outer edge side portions of the outer peripheral surfaces of the outer multi-core laminated portions 15. . That is, the outer coat layer 13Fx is coated on the outer peripheral surface of the eccentric coil winding wire 12 in a close contact state.

多芯積層部１５の各層である外層１５ａ、中層１５ｂ、外層１５ｃは同芯的に配置されている。各層１５ａ、１５ｂ、１５ｃの撚線の線径寸法は、多芯積層部１５の内層から外層にゆくに従って漸増するように設定されている。この漸増割合は、任意に設定できる他、例えば、等差級数あるいは等比級数的な関係で漸増するように設定してもよい。 The outer layer 15a, the middle layer 15b, and the outer layer 15c which are each layer of the multi-core laminated part 15 are arrange | positioned concentrically. The wire diameter dimension of the stranded wire of each layer 15a, 15b, 15c is set so that it may increase gradually from the inner layer of the multi-core laminated part 15 to an outer layer. This gradual increase ratio can be set arbitrarily, and may be set so as to increase gradually, for example, in a relational series or a geometric series.

なお、上記実施例１では、中心部の多芯積層部１５と外側の多芯積層部１５とは、同一の線径寸法のものを用いた。しかしながら、外側の多芯積層部１５の線径寸法は、中心部の多芯積層部１５の線径寸法よりも小さく設定し、外側に複数の多芯積層部１５を外接状態に配置してもよい。 In the first embodiment, the central multi-core laminated portion 15 and the outer multi-core laminated portion 15 have the same wire diameter. However, the outer diameter of the multicore laminated portion 15 is set to be smaller than the diameter of the central multicore laminated portion 15, and a plurality of the multicore laminated portions 15 are arranged on the outer side in a circumscribed state. Good.

多芯積層部１５の一例として、外層１５ａは、径寸法（φ）が０．０８ｍｍの細線を多数束ねた内撚線１６を撚線として７本設けている。
中層１５ｂは、径寸法（φ）が０．０５ｍｍの細線を多数束ねた中撚線１７を撚線として９本設けている。内層１５ｃは、径寸法（φ）が０．０３ｍｍの細線を多数束ねた外撚線１８を撚線として１２本設けている。 As an example of the multi-core laminated portion 15, the outer layer 15 a is provided with seven inner stranded wires 16 in which a large number of fine wires having a diameter (φ) of 0.08 mm are bundled as stranded wires.
The middle layer 15b is provided with nine middle stranded wires 17 in which a large number of fine wires having a diameter (φ) of 0.05 mm are bundled as stranded wires. The inner layer 15c is provided with twelve outer stranded wires 18 in which a large number of fine wires having a diameter (φ) of 0.03 mm are bundled.

この場合、外撚線１６、中撚線１７および内撚線１８の各径方向は、その全てが多芯積層部１５の径方向Ｒｓに沿って直線状態に重なるように合致している。
すなわち、各層（外層１５ａ、中層１５ｂ、内層１５ｃ）の撚線（外撚線１６、中撚線１７および内撚線１８）は、多芯積層部１５の周方向Ｃｓに沿って外接状態で、かつ径方向Ｒｓに沿って外接状態に配置されている。 In this case, the radial directions of the outer stranded wire 16, the intermediate stranded wire 17, and the inner stranded wire 18 are matched so that all of them overlap in a straight line along the radial direction Rs of the multicore laminated portion 15.
That is, the stranded wire (outer stranded wire 16, intermediate stranded wire 17 and inner stranded wire 18) of each layer (outer layer 15a, intermediate layer 15b, inner layer 15c) is circumscribed along the circumferential direction Cs of the multi-core laminated portion 15, And it is arrange | positioned in the circumscribed state along radial direction Rs.

なお、多芯積層部１５においては、外層１５ａ、中層１５ｂおよび内層１５ｃの同芯三層に限らず、その層数は使用状況などに応じて増減してもよい。また、外層１５ａ、中層１５ｂおよび内層１５ｃの各層の外撚線１６、中撚線１７および内撚線１８の各本数も所望に応じて増減してもよい。 In the multi-core laminated portion 15, the number of layers is not limited to the concentric three layers of the outer layer 15a, the middle layer 15b, and the inner layer 15c, and the number of layers may be increased or decreased depending on the use situation. Moreover, you may increase / decrease the number of each of the outer twisted wire 16, the middle twisted wire 17, and the inner twisted wire 18 of each layer of the outer layer 15a, the middle layer 15b, and the inner layer 15c as desired.

外撚線１６は互いに同一径寸法で同一円上に配置され、中撚線１７も互いに同一径寸法で同一円上に配置され、外撚線１８も互いに同一径寸法で同一円上に配置され、外層１５ａ、中層１５ｂおよび内層１５ｃの各層が同芯配置となっている。
多芯積層部１５の中心部は、多芯積層部１５の軸方向Ａｘに沿って延出する中空の空間部Ｓｐを形成し、多芯積層部１５の高屈曲性能の確保を可能としている。 The outer stranded wires 16 are arranged on the same circle with the same diameter size, the medium stranded wires 17 are also arranged on the same circle with the same diameter size, and the outer stranded wires 18 are also arranged on the same circle with the same diameter size. The outer layer 15a, the middle layer 15b, and the inner layer 15c are concentrically arranged.
The central portion of the multi-core laminated portion 15 forms a hollow space Sp that extends along the axial direction Ax of the multi-core laminated portion 15, thereby ensuring high bending performance of the multi-core laminated portion 15.

多芯積層部１５の断面積は、１５〜２５平方ｍｍ（好ましくは２０平方ｍｍ）の範囲内であり、多芯積層部１５の圧縮率は６０〜８０％（好ましくは７０％）の範囲内に設定している。これは多芯積層部１５の高電気容量化を確保するためである。
多芯積層部１５を上記と同一面積に設定して、０．０５ｍｍ〜０．０８ｍｍの径寸法を有する細線により構成すると、これらの細線が５万本程度必要となると目算され、実現化を阻む要因となっている。 The cross-sectional area of the multi-core laminated portion 15 is in the range of 15 to 25 square mm (preferably 20 square mm), and the compressibility of the multi-core laminated portion 15 is in the range of 60 to 80% (preferably 70%). Is set. This is to ensure a high electric capacity of the multi-core laminated portion 15.
If the multi-core laminated portion 15 is set to have the same area as described above and is constituted by fine wires having a diameter of 0.05 mm to 0.08 mm, it is estimated that about 50,000 of these fine wires are required, which hinders realization. It is a factor.

〔実施例１の効果〕
実施例１では、単位コイル線部７の第１中心部７ａとオフセットコイル線部８の第２中心部８とは、長手方向Ｌに対して互いに反対方向（図示上下）に変位させて配置している。
これにより、偏心コイル巻き導線１２に電流Ｉを流した場合、図２（ａ）に示すように、単位コイル線部７の１／４コイル部７ｄとオフセットコイル線部８の１／４コイル部８ｄとは、電流Ｉの向きが逆向きになる。このため、１／４コイル部７ｄの線長回りに生じる磁界Ｈｍと１／４コイル部８ｄの線長回りに生じる磁界Ｈｎとは磁束方向が互いに逆向きとなる。 [Effect of Example 1]
In the first embodiment, the first central portion 7a of the unit coil wire portion 7 and the second central portion 8 of the offset coil wire portion 8 are arranged so as to be displaced in mutually opposite directions (up and down in the drawing) with respect to the longitudinal direction L. ing.
Thereby, when the electric current I is sent through the eccentric coil winding wire 12, as shown to Fig.2 (a), the 1/4 coil part 7d of the unit coil wire part 7 and the 1/4 coil part of the offset coil wire part 8 are shown. The direction of the current I is opposite to 8d. For this reason, the magnetic field Hm generated around the line length of the ¼ coil portion 7d and the magnetic field Hn generated around the line length of the ¼ coil portion 8d have opposite magnetic flux directions.

この場合、単位コイル線部７とオフセットコイル線部８とのうち、電流Ｉの流れが互いに逆方向となる線部分（１／４コイル部７ｄ、８ｄ）の領域が少ない。これに加えて、当該線部分７ｄ、８ｄが隣接している場合と異なり、長手方向Ｌから上下に分かれるように大きく離間する。すなわち、磁束方向が互いに逆向きとなる磁界Ｈｍ、Ｈｎの相互に作用する影響力が低減する。
このため、これらの線部７、８が同芯で密接状態に同軸配置されたものと異なり、上述の線部分７ｄ、８ｄに逆方向に生じる磁界Ｈｍ、Ｈｎの電磁誘導作用の影響を少なくして電力損失の低下を抑制することができる。 In this case, of the unit coil wire portion 7 and the offset coil wire portion 8, there are few regions of the line portions (¼ coil portions 7d, 8d) in which the currents I flow in opposite directions. In addition to this, unlike the case where the line portions 7d and 8d are adjacent to each other, the line portions 7d and 8d are largely separated from each other in the vertical direction. That is, the influence force of the magnetic fields Hm and Hn having the opposite magnetic flux directions on each other is reduced.
For this reason, unlike those in which these line portions 7 and 8 are coaxially arranged concentrically and closely, the influence of the electromagnetic induction effect of the magnetic fields Hm and Hn generated in the reverse direction on the above-described line portions 7d and 8d is reduced. Thus, a reduction in power loss can be suppressed.

また、単位コイル線部７とオフセットコイル線部８とを長手方向に垂直な方向に変位させた配置に伴い、単位コイル線部７の頂部７ｘとオフセットコイル線部８の頂部８ｘとが互いに逆方向（図示上下）に突出して外部に晒される状態となる（図２（ｂ）、（ｃ）参照）。 Further, with the arrangement in which the unit coil wire portion 7 and the offset coil wire portion 8 are displaced in the direction perpendicular to the longitudinal direction, the top portion 7x of the unit coil wire portion 7 and the top portion 8x of the offset coil wire portion 8 are opposite to each other. It protrudes in the direction (up and down in the figure) and is exposed to the outside (see FIGS. 2B and 2C).

この結果、偏心コイル巻き導線１２に発生するジュール熱は、上述の頂部７ｘ、８ｘを介して外部に効果的に放出される。
すなわち、これら頂部７ｘ、８ｘが放熱フィンとしても働き、長期使用に伴なっても、偏心コイル巻き導線１２内に熱が籠もらず、偏心コイル巻き導線１２が過剰な昇温状態になることがない。
とりわけ、単位コイル線部７とオフセットコイル線部８とが相互に近接ないし接し合って密巻き状態になっている場合に、籠もった熱を逃がす頂部７ｘ、８ｘの働きが有用となる。 As a result, Joule heat generated in the eccentric coil winding 12 is effectively released to the outside through the top portions 7x and 8x.
That is, these top portions 7x and 8x also function as heat radiating fins, and even when used for a long period of time, heat is not trapped in the eccentric coil winding wire 12, and the eccentric coil winding wire 12 may be in an excessively heated state. Absent.
In particular, when the unit coil wire portion 7 and the offset coil wire portion 8 are close to or in contact with each other and are in a tightly wound state, the function of the top portions 7x and 8x for releasing trapped heat is useful.

とりわけ、インホイールモータ３の回転速度を電流で制御すべく、当該モータ３に、とりわけ直流の高電流や高電圧が偏心コイル巻き導線１２に適用されることがある。
この場合、ジュール熱は電流や電圧の二乗に比例するため、偏心コイル巻き導線１２に発生するジュール熱は、電流や電圧が大きくなるにつれて急増する関係にある。このため、効果的な放熱作用により偏心コイル巻き導線１２を過剰昇温から保護することが極めて重要になる。 In particular, in order to control the rotational speed of the in-wheel motor 3 with a current, a DC high current or a high voltage may be applied to the eccentric coil winding 12, particularly to the motor 3.
In this case, since the Joule heat is proportional to the square of the current or voltage, the Joule heat generated in the eccentric coil winding wire 12 has a relationship that increases rapidly as the current or voltage increases. For this reason, it is very important to protect the eccentric coil winding wire 12 from excessive temperature rise by an effective heat radiation action.

また、偏心コイル巻き導線１２は、撚線（外撚線１６、中撚線１７、内撚線１８）が複数層に積層された多芯積層部１５から成り、多芯積層部１５の各層１５ａ、１５ｂ、１５ｃは撚線を構成し、各層１５ａ、１５ｂ、１５ｃの撚線の線径寸法は内層から外層にゆくに従って漸増するように設定している。このため、撚線の細径化による軽量化を図りながらも各層１５ａ、１５ｂ、１５ｃの稠密充填が実現し、多芯積層部１５の高電気容量化を確保することができる。 The eccentric coil winding wire 12 includes a multi-core laminated portion 15 in which stranded wires (outer stranded wire 16, medium stranded wire 17, and inner stranded wire 18) are laminated in a plurality of layers, and each layer 15a of the multi-core laminated portion 15 is provided. , 15b, 15c constitute a stranded wire, and the diameter of the stranded wire of each layer 15a, 15b, 15c is set so as to gradually increase from the inner layer to the outer layer. For this reason, dense packing of each layer 15a, 15b, 15c is implement | achieved, aiming at weight reduction by diameter reduction of a strand wire, and high electrical capacity of the multi-core laminated part 15 can be ensured.

また、中心部の多芯積層部１５の外周縁に外接触状態に設けた外側の多芯積層部１５を複数本撚回して配置している。撚回配置した外側の多芯積層部１５により、外側の多芯積層部１５が線長方向に滑り易くなるため、偏心コイル巻き導線１２が曲げ変形力等に対してしなやかとなり、可撓性および屈曲性等の物理特性が向上する。 In addition, a plurality of outer multi-core laminated portions 15 provided in an outer contact state are twisted and arranged on the outer peripheral edge of the central multi-core laminated portion 15. Since the outer multi-core laminated portion 15 arranged in a twisted manner makes the outer multi-core laminated portion 15 easily slip in the wire length direction, the eccentric coil winding wire 12 becomes flexible with respect to bending deformation force, etc. Physical properties such as flexibility are improved.

図４は本発明の実施例２を示す。この実施例２が実施例１と異なるところは、多芯積層部１５の空間部Ｓｐに、絶縁チューブとしてのゴムチューブ２０に封入された通信線２１を軸方向Ａｘに沿って配置したことである。これにより、通信機能が追加されて多芯積層部１５の多用途ないしは多機能化を実現することができる。 FIG. 4 shows a second embodiment of the present invention. The difference between the second embodiment and the first embodiment is that a communication line 21 sealed in a rubber tube 20 as an insulating tube is arranged in the space Sp of the multi-core laminated portion 15 along the axial direction Ax. . Thereby, a communication function is added and the multi-core lamination | stacking part 15 can be versatile or multi-functionalized.

図５は本発明の実施例３を示す。この実施例３が実施例１と異なるところは、偏心コイル巻き導線１２において、外層１５ａの外撚線１６の本数を中層１５ｂにおける中撚線１７の本数および内層１５ｃにおける内撚線１８の本数と同数にしたことである（図５（ａ）、（ｂ）参照）。
中層１５ｂの中撚線１７は、外層１５ａの外撚線１６および内層１５ｃの内撚線１８と周方向Ｃｓに沿って相互に外接する状態に配置されている。 FIG. 5 shows a third embodiment of the present invention. Example 3 differs from Example 1 in that the number of outer stranded wires 16 in the outer layer 15a in the eccentric coil winding 12 is the number of inner stranded wires 17 in the intermediate layer 15b and the number of inner stranded wires 18 in the inner layer 15c. This is the same number (see FIGS. 5A and 5B).
The middle stranded wire 17 of the middle layer 15b is arranged in a state of circumscribing the outer stranded wire 16 of the outer layer 15a and the inner stranded wire 18 of the inner layer 15c along the circumferential direction Cs.

すなわち、各層（外層１５ａ、中層１５ｂ、内層１５ｃ）の撚線（外撚線１６、中撚線１７、内撚線１８）は周方向Ｃｓに沿って外接状態に配置され、各層の撚線の配置本数は本数に差のない同一数である。
このため、中撚線１７、外撚線１６および内撚線１８の各径方向の全てが、多芯積層部１５の径方向Ｒｓに沿って必ずしも一致するわけではない。 That is, the stranded wire (outer stranded wire 16, intermediate stranded wire 17, inner stranded wire 18) of each layer (outer layer 15a, intermediate layer 15b, inner layer 15c) is arranged in a circumscribed state along the circumferential direction Cs, and the stranded wire of each layer The number of arrangement is the same with no difference in the number.
For this reason, all of the radial directions of the intermediate stranded wire 17, the outer stranded wire 16, and the inner stranded wire 18 do not necessarily coincide with each other along the radial direction Rs of the multicore laminated portion 15.

実施例３では、多芯積層部１５に対する外層１５ａ、中層１５ｂおよび内層１５ｃの充填率が格段に向上して優れた高電気容量化を実現することができる。この際、多芯積層部１５の空間部Ｓｐには、実施例２と同様にゴムチューブ２０に封入された通信線２１を配しているが、通信線２１は省略し、空間部Ｓｐはスペースとして明けたままでもよい。 In Example 3, the filling rate of the outer layer 15a, the middle layer 15b, and the inner layer 15c with respect to the multi-core laminated portion 15 is remarkably improved, and an excellent high electric capacity can be realized. At this time, the communication line 21 enclosed in the rubber tube 20 is arranged in the space Sp of the multi-core laminated portion 15 as in the second embodiment, but the communication line 21 is omitted and the space Sp is a space. It may be left as dawn.

図６は本発明の実施例４を示す。この実施例４が実施例１と異なるところは、偏心コイル巻き導線１２において、外撚線１６、中撚線１７および内撚線１８の相互間に生じた空洞部に伝導線を配置したことである（図６（ａ）、（ｂ）参照）。
すなわち、内撚線１８と中撚線１７との相互間には、第１伝導線Ｋ１を外接状態に配置し、中撚線１７と外撚線１６との相互間には、第２伝導線Ｋ２を外接状態に配置し、被覆層１３と外撚線１６との相互間には、第３伝導線Ｋ３を外接状態に配置している。 FIG. 6 shows a fourth embodiment of the present invention. The difference between the fourth embodiment and the first embodiment is that, in the eccentric coil winding wire 12, the conductive wires are arranged in the cavity formed between the outer stranded wire 16, the middle stranded wire 17 and the inner stranded wire 18. (See FIGS. 6A and 6B).
That is, the first conductive wire K1 is arranged in a circumscribed state between the inner stranded wire 18 and the intermediate stranded wire 17, and the second conductive wire is interposed between the intermediate stranded wire 17 and the outer stranded wire 16. K2 is arranged in the circumscribed state, and the third conductive wire K3 is arranged in the circumscribed state between the coating layer 13 and the outer stranded wire 16.

この場合、多芯積層部１５の中空部Ｓｐには、実施例２と同様に、ゴムチューブ２０内に封入した通信線２１を配置している。
実施例４では、外撚線１６、中撚線１７および内撚線１８に加えて第１伝導線〜第３伝導線（Ｋ１〜Ｋ３）を高密度に稠密充填することが可能となる。 In this case, the communication line 21 enclosed in the rubber tube 20 is disposed in the hollow portion Sp of the multi-core laminated portion 15 as in the second embodiment.
In Example 4, in addition to the outer stranded wire 16, the middle stranded wire 17, and the inner stranded wire 18, the first conductive wire to the third conductive wire (K1 to K3) can be densely packed densely.

図７は本発明の実施例５を示す。この実施例５が実施例１と異なるところは、電磁波シールド５０が外被層１３Ｆｘの外周表面（外表面）を覆うように被覆する状態に設けられていることである。
電磁波シールド層５０は、例えば直径が０．２５〜１．５０ｍｍ程度である複数の金属細線５０ａ、５０ｂから可撓性の編組として筒状に構成され、あるいは金属細線５０ａ、５０ｂを網状（メッシュ状）に編み合わすことで筒状に構成されている。 FIG. 7 shows a fifth embodiment of the present invention. The fifth embodiment is different from the first embodiment in that the electromagnetic wave shield 50 is provided so as to cover the outer peripheral surface (outer surface) of the covering layer 13Fx.
The electromagnetic wave shielding layer 50 is formed in a cylindrical shape as a flexible braid from a plurality of fine metal wires 50a and 50b having a diameter of about 0.25 to 1.50 mm, for example, or the fine metal wires 50a and 50b are formed in a mesh shape (mesh shape). ) To form a cylindrical shape.

この電磁波シールド層５０は、特に細径で長尺となる場合、管状となってもよく、要は外被層１３Ｆｘに被せることができる中空構造であればよい。
また、電磁波シールド層５０は単一層に限らず、二層または三層など複数層に重ね合わされた重層構造であってもよい。
実施例５の電磁波シールド層５０は、上述の実施例２〜４のそれぞれにおいても適用可能である。 The electromagnetic wave shielding layer 50 may have a tubular shape, particularly if it has a small diameter and is long, and may be any hollow structure that can be covered on the outer covering layer 13Fx.
The electromagnetic wave shielding layer 50 is not limited to a single layer, and may have a multilayer structure in which a plurality of layers such as two layers or three layers are overlapped.
The electromagnetic wave shielding layer 50 of Example 5 can be applied to each of the above Examples 2 to 4.

電磁波シールド層５０を構成する金属細線５０ａ、５０ｂには、例えば銅、銅合金、アルミニウム、アルミニウム合金などを導電性材料として用いることができる。
外被層１３Ｆｘに対する電磁波シールド層５０の装着にあたっては、被覆コイル層１３を螺旋コイル状に曲成する加工前の直線状態で装着してもよい。 For the metal thin wires 50a and 50b constituting the electromagnetic wave shielding layer 50, for example, copper, copper alloy, aluminum, aluminum alloy or the like can be used as the conductive material.
When the electromagnetic wave shielding layer 50 is attached to the jacket layer 13Fx, the coated coil layer 13 may be attached in a straight state before being processed into a spiral coil shape.

実施例５では、偏心コイル巻き導線１２を高周波を伝送する通信線として用いることがある。この場合、電磁波シールド層５０により、多芯積層部１５内への電磁波ノイズ（例えばＲＦＩ、ＥＭＩなど）を遮蔽し、撚線（外撚線１６、中撚線１７、内撚線１８）などに対する電気信号の妨害を阻止することができる。 In the fifth embodiment, the eccentric coil winding 12 may be used as a communication line that transmits a high frequency. In this case, the electromagnetic wave shielding layer 50 shields electromagnetic noise (for example, RFI, EMI, etc.) into the multi-core laminated portion 15 and prevents stranded wires (outer stranded wire 16, intermediate stranded wire 17, inner stranded wire 18) and the like. Interference with electrical signals can be prevented.

また、偏心コイル巻き導線１２を通信線として用いた場合、偏心コイル巻き導線１２に渦電流に起因して生ずるジュール熱も頂部７ｘ、８ｘから有効に放散することができて有用である。 In addition, when the eccentric coil winding 12 is used as a communication line, Joule heat generated in the eccentric coil winding 12 due to eddy current can be effectively dissipated from the tops 7x and 8x.

なお、電磁波シールド層５０は、外被層１３Ｆｘの外周表面以外にも設けられる。例えば、電磁波シールド層５０は、外側の多芯積層部１５の各外周表面の外縁側部（偏心コイル巻き導線１２の外周表面）を覆うように装着して設け、電磁波シールド層５０が外被層１３Ｆｘと外側の多芯積層部１５との間に存するように配置してもよい（後述する実施例６、７参照）。 In addition, the electromagnetic wave shielding layer 50 is provided in addition to the outer peripheral surface of the covering layer 13Fx. For example, the electromagnetic wave shielding layer 50 is provided so as to cover the outer edge side portion (the outer circumferential surface of the eccentric coil winding wire 12) of each outer circumferential surface of the outer multi-core laminated portion 15. You may arrange | position so that it may exist between 13Fx and the outer multi-core laminated part 15 (refer Example 6 and 7 mentioned later).

偏心コイル巻き導線１２の全長寸法が大きくなる場合、電磁波シールド層５０を長手方向に複数区間にわたって分割して複数の分割シールド層部を形成し、これら複数の分割シールド層部をそれぞれ個別に偏心コイル巻き導線１２の外被層１３Ｆｘに被せて装着してもよい。
図７では、巻き線形状の偏心コイル巻き導線１２を曲成巻回加工前の直線状態で示している。後述する実施例６、７の図８および図９においても同様である。 When the overall length of the eccentric coil winding 12 is increased, the electromagnetic wave shielding layer 50 is divided into a plurality of sections in the longitudinal direction to form a plurality of divided shield layer parts, and each of the plurality of divided shield layer parts is individually arranged as an eccentric coil. The outer conductor layer 13 </ b> Fx of the winding wire 12 may be put on and attached.
In FIG. 7, the winding-shaped eccentric coil winding wire 12 is shown in a straight line state before the curved winding process. The same applies to FIGS. 8 and 9 of Examples 6 and 7 described later.

図８は本発明の実施例６を示す。実施例６が実施例５と異なるところは、外被層１３Ｆｘの外周表面に絶縁性の保護層５１を筒状の被覆層として装着するとともに、電磁波シールド層５０を偏心コイル巻き導線１２と外被層１３Ｆｘとの間に密着状態に配置したことである。
すなわち、電磁波シールド層５０は、外側の多芯積層部１５における各多芯積層部１５の被覆層１３の外側周縁部を被覆するように設けられている。 FIG. 8 shows a sixth embodiment of the present invention. Example 6 is different from Example 5 in that an insulating protective layer 51 is mounted on the outer peripheral surface of the outer cover layer 13Fx as a cylindrical covering layer, and the electromagnetic wave shielding layer 50 is attached to the eccentric coil winding 12 and the outer cover. That is, it is arranged in close contact with the layer 13Fx.
That is, the electromagnetic wave shielding layer 50 is provided so as to cover the outer peripheral edge portion of the coating layer 13 of each multi-core laminated portion 15 in the outer multi-core laminated portion 15.

保護層５１は、例えば、円錐筒状の成型ダイスを用いてポリエチレンテレフタレート（ＰＥＴ）やポリプロピレン系樹脂等の可撓性の絶縁性合成樹脂から薄肉に形成した構造体であってもよい。
電磁波シールド層５０に対する保護層５１の装着操作時、偏心コイル巻き導線１２をコイル状に曲成する前の直線状態で合成樹脂の押し出成形などにより装着してもよい。 The protective layer 51 may be, for example, a structure that is thinly formed from a flexible insulating synthetic resin such as polyethylene terephthalate (PET) or polypropylene resin using a conical cylindrical die.
When the protective layer 51 is attached to the electromagnetic wave shielding layer 50, the eccentric coil winding wire 12 may be attached by extrusion molding of a synthetic resin in a straight line state before being bent into a coil shape.

なお、保護層５１は、長尺帯状のテープ包装材として構成し、外被層１３Ｆｘの外周表面に螺旋状に巻き付けて螺旋筒体として装着してもよい。 The protective layer 51 may be configured as a long strip-shaped tape wrapping material, and may be wound around the outer peripheral surface of the jacket layer 13Fx in a spiral manner and mounted as a spiral cylinder.

また、保護層５１は、絶縁性合成樹脂の材料に代わって、ポリアニリン系樹脂などの導電性ポリマーから成る構造体として設けてもよい。これにより、保護層５１が電磁波シールド層５０と協働して遮蔽機能を相乗的に向上させ得る。外被層１３Ｆｘの材料も保護層５１と同様に導電性ポリマーに変更して構成してもよい。
実施例６の電磁波シールド層５０および保護層５１は、上述の実施例２〜４のそれぞれにおいても適用可能である。 The protective layer 51 may be provided as a structure made of a conductive polymer such as a polyaniline resin instead of the insulating synthetic resin material. Accordingly, the protective layer 51 can synergistically improve the shielding function in cooperation with the electromagnetic wave shielding layer 50. The material of the covering layer 13Fx may be changed to a conductive polymer in the same manner as the protective layer 51.
The electromagnetic wave shielding layer 50 and the protective layer 51 of Example 6 can also be applied to each of Examples 2 to 4 described above.

図９は本発明の実施例７を示す。この実施例７が実施例６と異なるところは、外被層１３Ｆｘと保護層５１との間に、電磁波シールド層５０とは別の電磁波シールド層５３を密着状態に配置したことである。
すなわち、金属線５３ａ、５３ｂをメッシュ状に編み合せて成る別の電磁波シールド層５３を設けて、この電磁波シールド層５３が外被層１３Ｆｘの外周表面に密着して被覆された状態に設けられている。
この場合、構造的に述べれば、保護層５１は、電磁波シールド層５３の外周表面に被覆された状態に設けられていると言える。 FIG. 9 shows a seventh embodiment of the present invention. The difference between the seventh embodiment and the sixth embodiment is that an electromagnetic wave shielding layer 53 different from the electromagnetic wave shielding layer 50 is disposed in a close contact state between the covering layer 13Fx and the protective layer 51.
That is, another electromagnetic wave shielding layer 53 formed by knitting metal wires 53a and 53b in a mesh shape is provided, and this electromagnetic wave shielding layer 53 is provided in a state of being in close contact with the outer peripheral surface of the jacket layer 13Fx. Yes.
In this case, if it says structurally, it can be said that the protective layer 51 is provided in the state coat | covered by the outer peripheral surface of the electromagnetic wave shield layer 53. FIG.

実施例７では、電磁波シールド層５０、５３を複数個所に設けているので、シールド作用が強化され、多芯積層部１５内への電磁波ノイズ（例えばＲＦＩ、ＥＭＩなど）を遮蔽する効果を増倍することができる。
実施例７の電磁波シールド層５０、５３および保護層５１は、上述の実施例２〜４のそれぞれにおいても適用可能である。 In Example 7, since the electromagnetic wave shielding layers 50 and 53 are provided at a plurality of locations, the shielding action is strengthened, and the effect of shielding electromagnetic wave noise (for example, RFI, EMI, etc.) into the multi-core laminated portion 15 is increased. can do.
The electromagnetic wave shielding layers 50 and 53 and the protective layer 51 of Example 7 are also applicable to each of Examples 2 to 4 described above.

〔変形例〕
（ａ）なお、単位コイル線部７およびオフセットコイル線部８、すなわち偏心コイル巻き導線１２に多芯積層部１５を適用しない場合も考えられる。 [Modification]
(A) In addition, the case where the multi-core laminated part 15 is not applied to the unit coil wire part 7 and the offset coil wire part 8, ie, the eccentric coil winding wire 12, is also considered.

（ｂ）このように、多芯積層部１５を適用しない場合、偏心コイル巻き導線１２の素線としては、銅あるは銅合金などの同一径で平等断面の金属線であり、この金属線の表面に錫、ニッケル、銀、アルミニウムあるいは各種の合金をメッキしたものを用いることができる。これらの金属線に代わって、例えば、ポリアセチレンやポリチオフェン等の導電性の合成樹脂線を用いてもよい。 (B) As described above, when the multi-core laminated portion 15 is not applied, the strands of the eccentric coil winding wire 12 are metal wires having the same diameter and equal section, such as copper or copper alloy. It is possible to use a surface plated with tin, nickel, silver, aluminum or various alloys. Instead of these metal wires, for example, conductive synthetic resin wires such as polyacetylene and polythiophene may be used.

（ｃ）撚回型電導線としては、インホイールモータ３に限らず、コンピュータを内蔵した電子制御ユニット（ＥＣＵ）と各種の車載センサーとの接続は勿論、ドライブモニター、車載ナビィゲーション装置、データ処理部、セキュリティ機器などの電子回路への接続、あるいは車体周りの構成部品やワイヤハーネスで接続可能な電装部品一般に適用してもよい。 (C) The twisted type conductive wire is not limited to the in-wheel motor 3, and is connected to an electronic control unit (ECU) incorporating a computer and various in-vehicle sensors, as well as a drive monitor, in-vehicle navigation device, data processing It may be applied to general electrical components that can be connected to electronic circuits such as parts, security devices, or components around the vehicle body and wire harnesses.

（ｄ）被覆層１３の樹脂材料としては、ポリウレタン樹脂や塩素化ポリオレフィンに代わって、ＥＰＤＭ（エチレン・プロピレン・ジエン・メチレンゴム）でもよく、あるいはポリアミド（ＰＡ）、ポリエステル、ポリイミド、ポリアミドイミド、ポリアセタール、ポリカーボネート（ＰＣ）、ポリフェニレンエーテル（ＰＰＥ）、ポリブチレンテレフタレート（ＰＢＴ）、ポリエチレンテレフタレート（ＰＥＴ）、ポリエチレン（ＰＥ）、ポリテトラフルオロエチレン（ＰＴＦＥ）あるいはシンジオタクチックポリスチレン（ＳＰＳ）などのエンジニアリングプラスチック材料を用いてもよい。また、絶縁塗料層としても、上記プラスチック材料から所望のものを選択してもよい。 (D) The resin material of the coating layer 13 may be EPDM (ethylene / propylene / diene / methylene rubber) instead of polyurethane resin or chlorinated polyolefin, or polyamide (PA), polyester, polyimide, polyamideimide, polyacetal. Engineering plastic materials such as polycarbonate (PC), polyphenylene ether (PPE), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyethylene (PE), polytetrafluoroethylene (PTFE) or syndiotactic polystyrene (SPS) May be used. Also, as the insulating paint layer, a desired material may be selected from the plastic materials.

本発明に係る撚回型電導線では、偏心コイル巻き導線におけるオフセットコイル線部と単位コイル線部から成る偏心コイル巻き導線に優れた放熱性、可撓性および屈曲性を付与している。これらの有用性に着目した関連事業からの需要が喚起され、関連部品の流通を介して機械産業に貢献することができる。 In the twisted type conductive wire according to the present invention, excellent heat dissipation, flexibility, and flexibility are imparted to the eccentric coil winding composed of the offset coil wire portion and the unit coil wire portion in the eccentric coil winding wire. Demand from related businesses focusing on these usefulness is aroused and can contribute to the machine industry through the distribution of related parts.

１Ａ撚回型電導線
３インホイールモータ
６電力線
７単位コイル線部
７ａ第１中心部
７ｘ単位コイル線部の頂部
８オフセットコイル線部
８ａ第２中心部
８ｘオフセットコイル線部の頂部
７Ａ配列コイル線部
１２偏心コイル巻き導線
１３被覆層
１３Ｆｘ外被層
１５多芯積層部
１５ａ外層
１５ｂ中層
１５ｃ内層
１６外撚線
１７中撚線
１８内撚線
５０電磁波シールド層
５１保護層
Ａｘ多芯積層部の軸方向
Ｊ螺旋巻き方向
Ｌ長手方向
Ｍ接近間隔
Ｒオフセットコイル線部の径方向
Ｒｓ多芯積層部の径方向
Ｒｘ半径寸法分
Ｒｚオフセットコイル線部の線径寸法
Ｓｐ空間部 DESCRIPTION OF SYMBOLS 1A Twisted-type conducting wire 3 In-wheel motor 6 Power line 7 Unit coil wire part 7a 1st center part 7x Top part of unit coil wire part 8 Offset coil wire part 8a 2nd center part 8x Top part of offset coil wire part 7A Arrangement coil wire Part 12 Eccentric coil winding wire 13 Covering layer 13Fx Outer layer 15 Multi-core laminated part 15a Outer layer 15b Middle layer 15c Inner layer 16 Outer stranded wire 17 Middle stranded wire 18 Inner stranded wire 50 Electromagnetic wave shielding layer 51 Protective layer Ax Multi-core laminated shaft Direction J Spiral winding direction L Longitudinal direction M Approach interval R Radial direction of offset coil wire part Rs Radial direction of multi-core laminated part Rx Radial dimension Rz Wire diameter dimension of offset coil wire part Sp Space part

Claims

A first center portion (7a), which is bent in a loop shape so as to form a spiral shape in a spiral winding direction (J) around the predetermined direction from the first center portion (7a); A single-pitch unit coil wire portion (7) as a portion (7s);
An array coil wire portion (7A) configured by arranging a large number of the unit coil wire portions (7) side by side in a longitudinal direction (L) along a certain straight line at a constant approach interval (M) that is close to each other. )When,
Of the unit coil wire portions (7, 7) adjacent along the longitudinal direction (L), one loop end portion (7s) and the other first central portion (7a) are connected to each other, and the longitudinal The second center is disposed in an offset state along a direction perpendicular to the direction (L) and has a spiral shape in the same direction as the spiral winding direction (J) of the unit coil wire portion (7). A single offset coil wire portion (8) having a portion (8a) and an eccentric coil winding wire (12) configured to be stretchable in the longitudinal direction (L),
The eccentric coil winding (12) has a plurality of multi-core laminated portions (15) in which stranded wires (16, 17, 18) are laminated in a plurality of layers,
A plurality of the outer multi-core laminated portions (15) provided in an outer contact state on the outer peripheral edge of the multi-core laminated portion (15) arranged so as to exist in the central portion of the plurality of multi-core laminated portions (15). It is configured by twisting and arranging,
The layers (outer layer 15a, middle layer 15b, inner layer 15c) of the multi-core laminated portion (15) are arranged concentrically, and the diameter of the stranded wire of each of the layers (15a, 15b, 15c) A twisted conductive wire, characterized in that it is set to gradually increase from the inner layer to the outer layer of the core laminated portion (15).

The offset coil wire portion (8) has a start end portion (8g) and a terminal end portion (8h) that are close to each other, and is disposed between the adjacent unit coil wire portions (7, 7), The start end (8g) is connected to the loop end (7s) via a connection left line (8e), and the end (8h) is connected to the other first line via a connection right line (8f). The twisted conductive wire according to claim 1, wherein the twisted conductive wire is connected to the central portion (7a).

The approaching interval (M) is set to be a gap within a range of 1 to 1.5 times the wire diameter (Rz) of the offset coil wire portion (8). The twisted conductive wire according to claim 1.

The unit coil wire portion (7) and the offset coil wire portion (8) have the same diameter, and the second center portion ( 8a ) extends from the first center portion (7a) to the unit coil wire portion. The twisted type conductive wire according to claim 1, wherein the twisted type conductive wire is arranged to be moved by a radial dimension of the offset coil wire portion (8).

The first central portion (7a) of the multiple unit coil wire portions (7) is set coaxially along the longitudinal direction (L), and the second central portion of the offset coil wire portion (8). The twisted conductive wire according to claim 1, wherein (8a) is also set coaxially along the longitudinal direction (L).

The twisted wires of the layers (outer layer 15a, middle layer 15b, inner layer 15c) are arranged in a circumscribed state along the circumferential direction (Cs) of the multi-core laminated portion (15), and the diameters of the twisted wires of the respective layers. 2. The twisted conductive wire according to claim 1, wherein the direction is matched so as to overlap in a linear state along a radial direction (Rs) of the multi-core laminated portion (15).

The twisted wires of the respective layers (outer layer 15a, middle layer 15b, inner layer 15c) are arranged in a circumscribed state along the circumferential direction (Cs), and the number of arranged twisted wires of the respective layers (15a, 15b, 15c) is The twisted conductive wire according to claim 1, wherein the same number is set so that there is no difference in number.

The central portion of the multi-core laminate portion (15) forms a hollow space portion (Sp) extending along the axial direction (Ax) of the multi-core laminate portion (15), and the space portion (Sp) The twisted conductive wire according to claim 1, wherein a communication line (21) enclosed in an insulating tube (20) is arranged along the axial direction (Ax).

The multi-core laminated portion (15) is set to a predetermined compression ratio and has a desired cross-sectional area, the desired cross-sectional area is within a range of 15 to 25 square mm, and the predetermined compression ratio is 60 The twisted conductive wire according to claim 1, which is in a range of ˜80%.

The outer peripheral surface of the multi-core laminated portion (15) is covered with a coating layer (13), and the resin material of the coating layer (13) is a vinyl polymer group consisting of polyethylene, polystyrene, polypropylene and polyvinyl chloride. And a twisted conductive wire according to claim 1, which is one selected from the group consisting of polyesters and polyamides.

A jacket layer (13Fx) is coated on the outer peripheral side of the eccentric coil conductor (12), and a cylindrical electromagnetic shielding layer (50) composed of a single layer or a plurality of layers is formed on the jacket layer (13Fx) and the The twisted conductive wire according to claim 1, wherein the twisted conductive wire is arranged between the eccentric coil winding wire (12).

The twisted conductive wire according to claim 11, wherein an electromagnetic wave shielding layer (53) different from the electromagnetic wave shielding layer (50) is disposed on an outer peripheral surface of the outer sheath layer (13Fx).

A protective layer (51) made of an insulating synthetic resin is provided in a state where the outer peripheral surface of the electromagnetic wave shield layer (53) is covered, and the electromagnetic wave shield layer (53) is formed of the outer cover layer (13Fx) and the protective layer. It is arrange | positioned between (51), The twist type | mold conductive wire of Claim 12 characterized by the above-mentioned.

The twisted conductive wire according to claim 13, wherein the protective layer (51) is provided as a structure made of a conductive polymer in place of the insulating synthetic resin.

A jacket layer (13Fx) is coated on the outer peripheral side of the eccentric coil conductor (12), and a cylindrical electromagnetic shielding layer (50) composed of a single layer or a plurality of layers is formed on the jacket layer (13Fx) and the Between the eccentric coil winding (12) and
The twisted wires of the layers (outer layer 15a, middle layer 15b, inner layer 15c) are arranged in a circumscribed state along the circumferential direction (Cs) of the multi-core laminated portion (15), and the diameters of the twisted wires of the respective layers. 2. The twisted conductive wire according to claim 1, wherein the direction is matched so as to overlap in a linear state along a radial direction (Rs) of the multi-core laminated portion (15).

An electromagnetic wave shielding layer (53) different from the electromagnetic wave shielding layer (50) is disposed on the outer peripheral surface of the jacket layer (13Fx),
The twisted wires of the layers (outer layer 15a, middle layer 15b, inner layer 15c) are arranged in a circumscribed state along the circumferential direction (Cs) of the multi-core laminated portion (15), and the diameters of the twisted wires of the respective layers. 16. The twisted conductive wire according to claim 15, wherein the direction is matched so as to be overlapped in a linear state along the radial direction (Rs) of the multi-core laminated portion (15).

A protective layer (51) made of an insulating synthetic resin is provided in a state where the outer peripheral surface of the electromagnetic wave shield layer (53) is covered, and the electromagnetic wave shield layer (53) is formed of the outer cover layer (13Fx) and the protective layer. It arrange | positions between (51), The twist type | mold conductive wire of Claim 16 characterized by the above-mentioned.

A jacket layer (13Fx) is coated on the outer peripheral side of the eccentric coil conductor (12), and a cylindrical electromagnetic shielding layer (50) composed of a single layer or a plurality of layers is formed on the jacket layer (13Fx) and the Between the eccentric coil winding (12) and
The twisted wires of the respective layers (outer layer 15a, middle layer 15b, inner layer 15c) are arranged in a circumscribed state along the circumferential direction (Cs), and the number of arranged twisted wires of the respective layers (15a, 15b, 15c) is The twisted conductive wire according to claim 1, wherein the same number is set so that there is no difference in number.

An electromagnetic wave shielding layer (53) different from the electromagnetic wave shielding layer (50) is disposed on the outer peripheral surface of the jacket layer (13Fx),
The twisted wires of the respective layers (outer layer 15a, middle layer 15b, inner layer 15c) are arranged in a circumscribed state along the circumferential direction (Cs), and the number of arranged twisted wires of the respective layers (15a, 15b, 15c) is 19. The twisted conductive wire according to claim 18, wherein the same number is set so that there is no difference in number.

A protective layer (51) made of an insulating synthetic resin is provided in a state where the outer peripheral surface of the electromagnetic wave shield layer (53) is covered, and the electromagnetic wave shield layer (53) is formed of the outer cover layer (13Fx) and the protective layer. The twisted conductive wire according to claim 19, which is disposed between (51) and (51).

A jacket layer (13Fx) is coated on the outer peripheral side of the eccentric coil conductor (12), and a cylindrical electromagnetic shielding layer (50) composed of a single layer or a plurality of layers is formed on the jacket layer (13Fx) and the Between the eccentric coil winding (12) and
The central portion of the multi-core laminate portion (15) forms a hollow space portion (Sp) extending along the axial direction (Ax) of the multi-core laminate portion (15), and the space portion (Sp) The twisted conductive wire according to claim 1, wherein a communication line (21) enclosed in an insulating tube (20) is arranged along the axial direction (Ax).

An electromagnetic wave shielding layer (53) different from the electromagnetic wave shielding layer (50) is disposed on the outer peripheral surface of the jacket layer (13Fx)
The central portion of the multi-core laminate portion (15) forms a hollow space portion (Sp) extending along the axial direction (Ax) of the multi-core laminate portion (15), and the space portion (Sp) The twisted type conductive wire according to claim 21, wherein a communication line (21) enclosed in an insulating tube (20) is arranged along the axial direction (Ax).

A protective layer (51) made of an insulating synthetic resin is provided in a state where the outer peripheral surface of the electromagnetic wave shield layer (53) is covered, and the electromagnetic wave shield layer (53) is formed of the outer cover layer (13Fx) and the protective layer. It arrange | positions between (51), The twist type | mold conductive wire of Claim 22 characterized by the above-mentioned.